Copyright issues

Whether you may download these texts is decided by your local
copyright regulation laws:

United States —
If U.S. copyright law applies to you, you may download neither
the “Case-Book of Sherlock Holmes”—and the short stories contained
in it—nor “The complete Canon” at the beginning of the list (since
it also contains the case-book). You might want to take a look at
the “U.S. edition” canon instead: This contains everything except
the case-book. By the way: For the case-book, the copyright will
expire between 2016 and 2023 (see
sherlockian.net).

Europe —
For all countries in the European Union, copyright seems to expire
70 years after the author's death, thus it should be legal to
download all the texts from there (see the
Online Books Page).